Granted Patent
Utility
US 4,541,019 · App. 06/444,712
Recording system for recording data on tape in a disk-recording format
Inventor:
Normand E. Precourt
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: Nov 26, 1982
Inventor
Normand E. Precourt
Assignee (at issue)
Cipher Data Products, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.